PLATE XII. 



Boivmanites Caiahremis, Binney. 



Fig. 1 (No. 30). Natural mould of the Stem, Branch, and lower portion of the 

 Cone, containing Macrospores, in a nodule of clay-ironstone, from the Varteg Iron-works, 

 South Wales. Natural size. 



Fig. \a. Natural mould of a portion of the Stem and two whorls of Leaves, in 

 another piece of the nodule. Magnified 2 diameters. 



Fig. \b. A cast (in gutta percha) of a portion of the Stem, with Joints, Knots, and 

 Leaves. Magnified 2 diameters. 



Fig. \c. A cast (in gutta percha) of the Branch to which the Cone was attached. 

 Magnified 2 diameters. 



Fig. 2. The Stem, Branch, Leaves, and Cone, as restored by the late Mr. Bowman. 

 Natural size. 



Fig. 3. Three of the lower Scales or Bracts, two of them supporting each five 

 Macrospores, from Mr. Bowman's original sketch. Magnified 6 diameters. 



